assertion retraction graph subject predicate object datatype annotation 1 0 graph obo:SYMP_0019169 rdfs:label arthritis xsd:string 1 0 graph obo:SYMP_0019169 rdfs:comment doid/symp duplicate xsd:string 1 0 graph obo:SYMP_0019169 oio:id SYMP:0019169 xsd:string 1 0 graph obo:SYMP_0019169 oio:hasOBONamespace symptoms xsd:string 1 0 graph obo:SYMP_0019169 rdfs:subClassOf obo:SYMP_0000891 _IRI 1 0 graph obo:SYMP_0019169 rdf:type owl:Class _IRI 1 0 graph obo:SYMP_0019169 IAO:0000115 Arthritis is a musculoskeletal system symptom characterized as an inflammation of joints due to infectious, metabolic, or constitutional causes. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www2.merriam-webster.com/cgi-bin/mwmednlm?book=Medical&va=arthritis""}]}"